Home › Final paycheck letters › Illinois › fired

Fired in Illinois: when your last paycheck has to be paid

Being fired does not change what you are owed — it changes the deadline. In Illinois, final compensation is due at the time of separation if possible; if it is not possible to calculate it then, it is due no later than the next regularly scheduled payday (820 ILCS 115/5).

If that date has passed and the money has not arrived, you are no longer asking for a favour; you are recording a missed legal deadline. That is the difference a demand letter makes.

Statute
820 ILCS 115/5 (Illinois Wage Payment and Collection Act); 115/14 (penalties)
If fired
Final compensation is due at the time of separation if possible; if it is not possible to calculate it then, it is due no later than the next regularly scheduled payday (820 ILCS 115/5).
If you resigned
Same rule on resignation: final compensation at separation if possible, otherwise by the next regularly scheduled payday.
Late-pay penalty
820 ILCS 115/14(a): damages of 5% of the underpayment per month it stays unpaid (2% per month where the underpayment is $200 or less), capped at 100%, plus a court-awarded attorney's fee and costs.
PTO
Illinois requires payout of earned, unused vacation only if the employer's written policy or contract provides for it; the policy is what a claim turns on.
Small claims limit
$10,000 for an individual
Last verified
2026-11-03 single source

What to put in the file before you write anything

  1. The exact date of your separation as it appears on the termination notice, the last timecard, or the last email from the employer — not the date you were told.
  2. Your final pay stub, or the absence of one, plus your last two regular stubs to prove the rate of pay.
  3. Any text, email or letter that states the reason for the termination. In Illinois the deadline does not depend on the reason, but the record does.
  4. A screenshot of the payroll portal showing the last payment date, so the gap is documented by the employer's own system.

What the letter does that a phone call cannot

A demand letter fixes three things at once: the amount, the date each item was due, and the date the employer was on notice. Every forum that can help you — the Illinois Department of Labor — Wage Payment and Collection, a small claims judge — starts from those three facts. The letter is built from 820 ILCS 115/5 (Illinois Wage Payment and Collection Act); 115/14 (penalties) and your own figures, so the deadline it states is the one that applies to your separation, not a generic thirty days.

If the amount fits inside $10,000, small claims court is usually faster than an agency queue; if it does not, the agency route and a demand first is the cheaper path.

Build the Illinois letter — $9.99 Free: calculate my deadline

Questions

Can my employer wait until the next payday after firing me in Illinois?

Final compensation is due at the time of separation if possible; if it is not possible to calculate it then, it is due no later than the next regularly scheduled payday (820 ILCS 115/5).

What can I claim on top of the wages in Illinois?

820 ILCS 115/14(a): damages of 5% of the underpayment per month it stays unpaid (2% per month where the underpayment is $200 or less), capped at 100%, plus a court-awarded attorney's fee and costs.

Other situations in Illinois

resigning · a layoff · unused PTO · unpaid commissions · all Illinois rules

Reviewed 2026-11-03 against the sources listed on the Illinois page. This is a self-help document tool, not legal advice, and no outcome is guaranteed.